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分枝定界法

分枝定界法的相关文献在1986年到2020年内共计100篇,主要集中在自动化技术、计算机技术、经济计划与管理、数学 等领域,其中期刊论文97篇、会议论文3篇、专利文献95579篇;相关期刊80种,包括绍兴文理学院学报、淮海工学院学报(人文社会科学版)、管理工程学报等; 相关会议3种,包括第19届中国遥感大会、中国系统工程学会第十届年会、中国运筹学会第六届学术交流会等;分枝定界法的相关文献由200位作者贡献,包括孙小玲、牛淑芬、聂锐等。

分枝定界法—发文量

期刊论文>

论文:97 占比:0.10%

会议论文>

论文:3 占比:0.00%

专利文献>

论文:95579 占比:99.90%

总计:95679篇

分枝定界法—发文趋势图

分枝定界法

-研究学者

  • 孙小玲
  • 牛淑芬
  • 聂锐
  • 吴唤群
  • 李学斌
  • 杜廷松
  • 沈秋英
  • 王国欣
  • 费浦生
  • 陈权宝
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 杨思明; 王凤军
    • 摘要: 在解决旅行商问题时,有两种常用的方法,即遗传算法与分枝定界法。本文使用K均值聚类改进分枝定界法,求解给定的旅行商问题。通过运用这两种算法求解TSP进行比较,相比之下K均值聚类优化的分枝定界法在解决旅行商问题中表现得更好。
    • 顾文亚; 孟祥瑞
    • 摘要: 整数规划是线性规划的基础上,对部分或全部决策变量为整数的最优化问题的模型、算法及应用等研究,是运筹学和管理科学中应用最基本的模型之一.大多数整数规划问题的计算求解存在实际的困难,求解一般线性规划的方法无法求解整数规划.为加深学生的理解,提高动手能力,本文介绍了一般整数规划和0-1整数规划的Matlab命令,并给出具体的实例.
    • 朱翠涛; 孟帆
    • 摘要: By utilizing monotonic structure in the model of total capacity of downlink in maximum system,the optimal resource allocation problem is transformed into a nonlinear nonconvex problem due to the existence of the interference, and this paper puts forward an improved Polyblock outer approximation method to solve it.The outer approximation algorithm for Polyblock in the process of solving the number of vertices value exponentially increased, resulting in a large amount of computation, slowing down convergence and other defects.The improved algorithm uses the branch and bound method to divide the feasible region and in the best interests of the priority ways to expand and search nodes.By removing unnecessary branches that do not contain the optimal solution, the feasible region is getting smaller and smaller, and finally it is close to the optimal solution.The experimental results show that the improved algorithm can improve the convergence speed and the effect of approximating the optimal solution.%利用最大化系统下行链路总容量问题模型中隐含的单调结构,将由于干扰存在使得构建的最优资源分配为非线性非凸的问题转换为单调优化问题,提出了一种改进的Polyblock外逼近法对其进行求解.该算法针对Polyblock外逼近法在求解过程中顶点值的个数呈指数倍增长,导致计算量较大、收敛速度较慢等缺陷,改用分枝定界法划分可行域区域,并以最大利益优先的方式进行节点扩展和搜索,边分枝边剪除不符合条件的枝,使可行域范围越来越小,最终逼近最优解.实验结果表明:改进算法提高了收敛速度和逼近最优解的效果.
    • 杨子兰; 李睿; 张瑜
    • 摘要: The resource constrained generalized assignment problem(RGAP) is NP-Hard.In this paper,By decomposiug the objective function and the constraints,the RGAP model is decomposed into a set of sub-problems and the heuristic decomposition algorithm is presented to solve the RGAP problem.Also,we give some examples to illustrate how the heuristic decomposition algorithm works.%资源受限广义指派问题(RGAP)是NP-难的,对RGAP问题给出一个分解启发式算法.通过分解目标函数及约束条件,把原问题分解成子问题的集合,并设计分解启发式算法找到该问题的满意解.最后,通过算例说明算法的有效性.
    • 冯岩; 孙芳; 代雯雯
    • 摘要: 目前,微课越来越受到人们的关注,也成为教育界研究和讨论的热点.本文从微课的优点和运筹学课程的特点出发,探讨微课在运筹学课程教学中的应用,并以分枝定界法为例,将微课运用到的课前、课中、课后中.通过这次实践,我们认为,采用微课教学模式实施教学,能有效激发学生的学习兴趣和自主性,提高教学效果,进而提高教学质量.
    • 王名扬; 李民
    • 摘要: 太阳能发电是利用光伏组件的光生伏特效应,将光能转化为电能.光伏电池组件所产生的直流电需要经过逆变器转换成220V交流电才能供家庭使用.光伏电池的发电量受诸多因素影响,因此光伏电池的铺设问题对太阳能的利用具有重要意义.本文首先把铺设电池的实际问题转化为数学问题,针对太阳能小屋光伏电池板的选择和铺设的实际问题,采用图解分析法、整数线性规划、非线性规划和分枝定界法建立数学模型,最终解决了光伏电池在小屋外表面的优化铺设问题.
    • Hong Li; Li Zhang; Yongchang Jiao
    • 摘要: A discrete differential evolution algorithm combined with the branch and bound method is developed to solve the integer linear bilevel programming problems, in which both upper level and lower level variables are forced to be integer. An integer coding for upper level variables is adopted, and then a discrete differential evolution algorithm with an improved feasibility-based comparison is developed to directly explore the integer solution at the upper level. For a given upper level integer variable, the lower level integer programming problem is solved by the existing branch and bound algorithm to obtain the optimal integer solution at the lower level. In the same framework of the algorithm, two other constraint handling methods, i.e. the penalty function method and the feasibility-based comparison method are also tested. The experimental results demonstrate that the discrete differential evolution algorithm with different constraint handling methods is effective in finding the global optimal integer solutions, but the improved constraint handling method performs better than two compared constraint handling methods.
    • 孙涛
    • 摘要: 配送中心选址是一个包含连续变量和离散变量的复杂的非线性模型,应用遗传算法求解这一连续选址问题,将配送中心的位置坐标进行编码,使用贪心算法给出分配方案与适应度函数,虽然贪心算法只根据距离给出近似最优的分配方案,但是结合遗传算法的全局寻优能力,能够得出整体最优解较好的近似.通过实例验证,与使用分枝定界法相比较,两种方法得到的最终目标函数值相差不大,而在计算时间上,使用贪心算法的遗传算法明显更具优势.
    • 戴桂木; 王萌萌; 周力
    • 摘要: Based on branch-observed concept, this paper proposed a kind of optimal placement algorithm to minimize information collect-ing nodes under the conditions making the active distribution network completely observable. Introduction was made to the basic branch-observed principle. This paper established the optimal placement model based on the completely branch-observed active distribution network for information collecting nodes, and the branch and bound method is used to solve the integer programming problem. In addition, the inlfu-ence of the optimal placement has been discussed when the distributed generation (DG) is accessed to the distribution network in different locations. The proposed algorithm is tested with 14-bus and 37-bus active distribution network. The correctness of the algorithm has been veriifed.%基于支路可观概念,提出了一种在保证系统完全可观测的情况下,以布置信息采集点最少为目标的信息采集点优化布置算法。介绍了支路可观基本原理,建立了基于支路完全可观的有源配电网信息采集点优化布置模型,对建立的整数规划模型采用分枝定界法进行求解,并分析了有源配电网中DG接入位置不同对优化布置方案的影响。在14节点和37节点有源配电网系统中进行算例分析,验证了所提算法的正确性。
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